$font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
  'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
  'Segoe UI Symbol', 'Noto Color Emoji';
$code-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono',
 'Courier New', monospace;